J022052 An Accurate Determination of Inlet/Outlet Boundary Conditions in Vascular CFD Analysis using 3D Cine PC-MR Velocimetry

Abstract

A new method to specify accurate boundary conditions (BCs) on inlet or outlet boundaries in vascular CFD analysis is proposed. The proposed method corrects the flow velocities measured by 3D cine PC-MR (4D-Flow) velocimetry based on the error characteristics of 4D-Flow and the law of large numbers. Experiments with a rotative phantom are carried out to evaluate the error characteristics of 4D-Flow. The accuracy of a few BCs given by the proposed method is experimentally validated with a straight and curved pipe phantom.